Dawn is 15 years old today. This is 5 times as old as her sister Eve was when Dawn was the age that Eve is today. How old is Eve today? Please help

3 answers

15 = 5(9-6)

6 years ago, Eve was 3. So, she is 9 today.
Eve was 3, when Dawn was Eve's current age

there is NOT enough information to determine Eve's age
... she is older than 3 and younger than 15
upon further reflection...

the time between 3 and Eve's age, is the same as the time between Eve's age and Dawn's age

E - 3 = 15 - E